TL594
ꢓ
ꢄ ꢝ ꢡ
ꢬ
ꢚ
ꢂ
ꢀ
ꢁ
ꢲ
ꢙ
ꢕ
ꢍ
ꢝ
ꢄ
ꢁ
ꢂ
ꢁ
ꢀ
ꢁ
ꢓ
ꢀ ꢀ
ꢂ
ꢷ
ꢉ ꢎ
ꢓ
ꢄ
ꢓ ꢫ ꢑꢓ
ꢗ ꢇ
ꢝ
ꢡ
ꢉ ꢠꢯ ꢭꢚ ꢧ
ꢓ ꢼ ꢪ ꢯꢓ
ꢚ ꢒꢑ ꢓ
ꢂ ꢝꢡ
ꢬ
ꢚ
ꢂ
ꢀ
ꢁ
ꢷ ꢘꢙ ꢋꢝ
ꢜꢧ ꢈꢈꢗ ꢍ ꢗꢅ ꢇꢙꢘ
ꢀꢗ ꢄꢖꢆ ꢗꢍ ꢕꢟ
ꢎ ꢭꢑ
ꢃ ꢇ ꢈ
ꢭ
ꢁ
Figure 19. Slaving Two or More Control Circuits
Figure 20. Operation with Vin > 40 V Using
External Zener
ꢨ ꢓ ꢼ ꢮ ꢒꢑ ꢓ ꢍꢅ ꢎ ꢑꢓ
ꢗ
ꢇ
ꢉꢎ
ꢨꢓ ꢼ ꢎ ꢮ ꢓ
ꢔ
ꢊ
ꢼ ꢑ ꢒꢎ ꢧ
ꢉ ꢠꢫ ꢯꢪ ꢫ
ꢔ
ꢫ ꢭ
ꢉ
ꢎ
ꢓ
ꢁ
ꢀ ꢀ
ꢉ
ꢨ
ꢩ
ꢮ
ꢎ ꢎ
ꢱ
ꢁꢗ ꢌ
ꢪ ꢎ
ꢀ
ꢉ
ꢵ
ꢉ ꢒꢑ ꢲ
ꢪ ꢪꢱ
ꢉ
ꢨ
ꢚ ꢑ
ꢪ ꢚꢓ
ꢪ
ꢀꢁꢂꢃꢄ
ꢀꢅ ꢢꢌ
ꢩ
ꢨ
ꢚ ꢑ
ꢎ ꢚꢓ
ꢑ
ꢒ
ꢑ
ꢉ
ꢑ
ꢒ
ꢑ
ꢉ
ꢉ
ꢚ
ꢉ
ꢉ
ꢁꢗ ꢌ
ꢪ ꢎ
ꢀ
ꢫ
ꢒ
ꢭ
ꢱ
ꢎ
ꢨ
ꢚ
ꢑ
ꢪ
ꢚ
ꢓ
ꢉ
ꢬ
ꢨ
ꢉ
ꢎ
ꢔ
ꢀ
ꢓ
ꢦ
ꢁ
ꢀ
ꢂ
ꢁ
ꢃ ꢇꢈ
ꢯ
ꢐ
ꢐ
ꢂ
ꢐ
ꢛ
ꢁ
ꢉ
ꢒ
ꢑ
ꢫ
ꢭ
ꢉ
ꢠ
ꢫ
ꢯ
ꢪ
ꢫ
ꢉ
ꢪ
ꢉ
ꢫ
ꢫ
ꢚ
ꢬ
ꢭ
ꢉ
ꢑ
ꢨ
ꢎ
ꢫ
ꢑ
ꢫꢒ ꢭꢱ
ꢫꢒ ꢭꢱ
ꢉꢑ
ꢉꢑ ꢱ
ꢉ
ꢚ
ꢱ
ꢑ
ꢒ
ꢑ
ꢑ
ꢉ
ꢧ
ꢘ
ꢘ
ꢖ
ꢙ
ꢌ
ꢙ
ꢖ
ꢗ
ꢍ
ꢅ
ꢄ
ꢕ
ꢗ
ꢇ
μ
ꢛ
Test
Conditions
= 10 V to 40 V
Results
14 mV 0.28%
3.0 mV 0.06%
ꢵ ꢉ ꢩ ꢪ ꢒ ꢚ ꢢꢺ ꢑ ꢒ ꢪ ꢧ
ꢁꢉ ꢩ ꢤ ꢄꢗ ꢢꢙ ꢄꣃ ꢎ ꢑꢁ ꢀꢒ ꢁꢒ ꢎꢮ ꢧꢥ ꢃ
ꢁꢉ ꢩ ꢷ ꢝꢖꢅ ꢇ ꢈꢙ ꢄ ꣃ ꢉ ꢎꢔ ꢁ ꢀꢒ ꢁꢒ ꢪꢬ ꢧꢥ ꢃ
ꢁꢉ ꢩ ꢀꢅ ꢄ ꢝ ꢛꢝ ꢄꢄ ꢅ ꣅꢖꢆꢰ ꢝ ꢉ ꢫꢑ ꢮ ꢤꢩ ꢵ ꢑꢑꢩꢪ ꢀꢽ
Line Regulation
Load Regulation
Output Ripple
V
in
V
in
V
in
V
in
V
in
= 28 V, I = 1.0 mA to 1.0 A
O
= 28 V, I = 1.0 A
65 mVpp P.A.R.D.
O
Short Circuit Current
Efficiency
= 28 V, R = 0.1 Ω
1.6 A
71%
L
= 28 V, I = 1.0 A
O
Figure 21. Pulse Width Modulated Push−Pull Converter
http://onsemi.com
861
ROCHESTER [ Rochester Electronics ]
